Base | Representation |
---|---|
bin | 1110100011100… |
… | …10000111010111 |
3 | 22111202102202212 |
4 | 13101302013113 |
5 | 222224232411 |
6 | 20041024035 |
7 | 3011565116 |
oct | 721620727 |
9 | 274672685 |
10 | 122102231 |
11 | 62a18239 |
12 | 34a8501b |
13 | 1c3b1a54 |
14 | 12305c7d |
15 | aabd68b |
hex | 74721d7 |
122102231 has 2 divisors, whose sum is σ = 122102232. Its totient is φ = 122102230.
The previous prime is 122102203. The next prime is 122102237. The reversal of 122102231 is 132201221.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-122102231 is a prime.
It is a super-2 number, since 2×1221022312 = 29817909630354722, which contains 22 as substring.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122102237) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051115 + 61051116.
It is an arithmetic number, because the mean of its divisors is an integer number (61051116).
Almost surely, 2122102231 is an apocalyptic number.
122102231 is a deficient number, since it is larger than the sum of its proper divisors (1).
122102231 is an equidigital number, since it uses as much as digits as its factorization.
122102231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 122102231 is about 11049.9878280476. The cubic root of 122102231 is about 496.1060612051.
Adding to 122102231 its reverse (132201221), we get a palindrome (254303452).
It can be divided in two parts, 12210 and 2231, that added together give a palindrome (14441).
The spelling of 122102231 in words is "one hundred twenty-two million, one hundred two thousand, two hundred thirty-one".
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